Boss GA-FC GA Foot Controller Guitar Pedal EFFECTS - NEW - PERFECT CIRCUIT 761294503096 | eBay
The GA-FC: Unlocking Performance Potential with Your Amp
Roland GA FC Guitar Speaker Control Pedal GAFC Foot Switch Controller KTN ACS JC|Fiber Optic Equipments| - AliExpress
BOSS GAFC Amplifier Footswitch for Roland and Boss Amplifiers - Ray's Midbell Music
Finished My Daughter's Katana Pedalboard : r/BossKatana
Using a Roland GA-FC footswitch with Boss Katana 100w amplifiers - YouTube
Compare AIRSTEP Kat and BOSS GA-FC - YouTube
Amazon.com: Roland GA-FC Foot Controller for GA-112 and GA-212 : Musical Instruments
BOSS GA-FC EX Foot Controller new EX Version GAFCEX - Victor Litz
The GA-FC: Unlocking Performance Potential with Your Amp
Guitar Pedal X - GPX Blog - Boss's new GA-FC-EX Foot Controller Massively Expands on the Control Capabilities for Katana Amps
UNLEASH the power of your KATANA MKII with the GA-FC - How to use it and why you need it! - YouTube
Boss GA-FC – Thomann United States
The GA-FC: Unlocking Performance Potential with Your Amp
Building a ga-fc foot controller
Haven't seen a lot of examples of boards that implement the GA-FC, so here's the one I just put together! (Also posted in r/guitarpedals) : r/BossKatana